Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A glass reshaping process

A molding process and glass technology, applied in glass molding, glass pressing, glass manufacturing equipment and other directions, can solve the problems of irregular glass shape, reduced product quality rate, uneven product shrinkage, etc., to achieve no change in structure, The effect of avoiding uneven heating and improving the product quality rate

Inactive Publication Date: 2017-05-03
四川省洪雅维国光学有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The range of temperature fluctuations in the process of glass reshaping is very large, resulting in uneven shrinkage of the product, which eventually leads to the need to cut off the uneven glass body in subsequent deep processing, resulting in waste of raw materials and a significant reduction in product quality
[0003] In addition, in the existing reshaping process, the softening furnace usually uses one heating zone for heating, and it is not easy to control the softening degree of the glass blank. If the temperature in the furnace body is too low, the surface of the glass blank can be softened but the inner layer cannot be softened. Due to the brittleness of the glass, this kind of glass blank is prone to cracks when it is pressed into a preform, which will affect the quality of optical device products; to soften the inside of the glass blank, it is necessary to increase the temperature in the softening furnace. The lower glass tends to melt beyond the softening point, and the melted glass tends to have irregular shapes during the molding process, and even the glass liquid flows out, causing the preform to fail to meet the weight requirement

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A glass reshaping process
  • A glass reshaping process
  • A glass reshaping process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1 The technology of glass reshaping comprises the following steps:

[0032] (1) Preparation of coating: Take asbestos powder, silicone modified acrylate resin, methacryloxysilane, aluminosilicate and isopropanol respectively according to the proportioning ratio of 1:1.5:0.02:0.008:1. After the asbestos powder is ground, pass through a 600-mesh sieve, add methacryloxysilane and isopropanol to mix, put it in a high-speed disperser and disperse evenly for 8 minutes, add silicone modified acrylate resin and aluminosilicate to continue dispersing for 3 minutes , that is;

[0033] (2) Coating the surface of the glass blank with paint: use a sponge scraping tool or a brush to dip an appropriate amount of paint from top to bottom to coat with a coating thickness of 30μm, dry at 70°C for 30min, and then Dry at 100°C for 180min;

[0034] (3) Put the coated glass blank on the porcelain box, transport it into the heating zone in the softening furnace through the conve...

Embodiment 2

[0037] Embodiment 2 The technology of glass reshaping comprises the following steps:

[0038] (1) Preparation of coating: Take asbestos powder, silicone modified acrylate resin, methacryloyloxysilane, aluminosilicate and isopropanol respectively according to the proportioning ratio of 1:2:0.04:0.01:1.5. After the asbestos powder is ground, pass through a 600-mesh sieve, add methacryloxysilane and isopropanol to mix, put it in a high-speed disperser and disperse evenly for 8 minutes, add silicone modified acrylate resin and aluminosilicate to continue dispersing for 3 minutes , that is;

[0039] (2) Coating the surface of the glass blank with paint: use a sponge scraping tool or a brush to dip an appropriate amount of paint from top to bottom to coat with a coating thickness of 30μm, dry at 70°C for 30min, and then Dry at 100°C for 180mmin;

[0040](3) Put the coated glass blank on the porcelain box, transport it into the heating zone in the softening furnace through the con...

Embodiment 3

[0043] Embodiment 3 The technology of glass reshaping comprises the following steps:

[0044] (1) Preparation of coating: Take asbestos powder, silicone modified acrylate resin, methacryloyloxysilane, aluminosilicate and isopropanol respectively according to the proportioning ratio of 1:1.5:0.01:0.005:1. After the asbestos powder is ground, pass through a 600-mesh sieve, add methacryloxysilane and isopropanol to mix, put it in a high-speed disperser and disperse evenly for 8 minutes, add silicone modified acrylate resin and aluminosilicate to continue dispersing for 3 minutes , that is;

[0045] (2) Coating the surface of the glass blank with paint: use a sponge scraping tool or a brush to dip an appropriate amount of paint from top to bottom to coat with a coating thickness of 30μm, dry at 70°C for 30min, and then Dry at 100°C for 180mmin;

[0046] (3) Put the coated glass blank on the porcelain box, transport it into the heating zone in the softening furnace through the c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of glass processing and particularly relates to a glass re-shaping process which includes the following steps: (1) coating the surface of a glass blank body with a coating; (2) arranging the coated glass blank body on a porcelain box, conveying the porcelain box into a heating zone in a softening furnace through a conveying apparatus, and performing zoned stepwise heating to soften the glass blank body; (3) performing die-press moulding to the softened glass blank body in a shaping mould; (4) after the die-press moulding, cooling and demoulding the glass, and removing the coating layer on the surface to obtain a performer of glass. The glass blank body is coated with the heat-resistant and -insulation coating, so that the problems of non-uniformity of glass body and generation of shrinkage grains in the glass, which are caused by non-uniform heating and heat-expansion and cold-contraction and the like factors, during the glass re-shaping process are avoided. Through the zoned stepwise heating method, the softening degree of the glass blank body can be controlled well, so that the glass blank body is easily to press and shape and qualified ratio of products is increased.

Description

technical field [0001] The invention belongs to the technical field of glass processing, and in particular relates to a glass reshaping process. Background technique [0002] Before the glass is prepared for further processing of optical devices, it is often necessary to process the glass blank into preforms of various specifications. The quality of the preform is directly related to the quality of the final optics product. The process of reshaping glass blanks into preforms usually includes the steps of glass softening, compression molding, and cooling and demoulding. During this process, the thermal expansion coefficient of glass plays a vital role in the reshaping of glass. The range of temperature fluctuations in the glass remolding process is very large, resulting in uneven shrinkage of the product, which eventually leads to the need to shave off the uneven glass body during subsequent deep processing, resulting in waste of raw materials and a significant reduction in ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/00
CPCC03B11/00C03C17/009C03C2217/29C03C2217/445C03C2217/475
Inventor 杨维国牟建国黎明
Owner 四川省洪雅维国光学有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com